Math Games aligned to the Common Core Standard

Grade 2174 Skills

Measurement and Data

2.2.MD.A.1

Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.

2.2.MD.A.2

Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen.

2.120

Which Customary Unit of Length Is Appropriate?

2.121

Which Metric Unit of Length Is Appropriate?

2.2.MD.A.3

Estimate lengths using units of inches, feet, centimeters, and meters.

2.2.MD.A.4

Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.

2.2.MD.B.5

Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.

2.2.MD.B.6

Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2,..., and represent whole-number sums and differences within 100 on a number line diagram.

2.2.MD.C.7

Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.

2.123

Match Clocks and Time

2.124

Reading Clocks

2.125

Match Clocks and Time

2.126

Match Analog and Digital Clocks

AM or PM

Compare Clocks

Time Patterns

Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately.

2.131

Names and Values of Money II

2.132

Names and Values of Money I

2.133

Count Money

2.134

Equivalent Amounts of Money

2.135

Equivalent Coins I

2.136

Equivalent Coins II

2.137

Add and Subract Money Up to $1

2.138

Add and Subtract Money

2.139

Purchases: Do You Have Enough Money?

2.140

Count Up with Numbers

2.141

Which Picture Shows More?

2.142

Least Number of Coins

2.143

How Much More to Make a Dollar?

2.144

Making Change Up to $20

2.145

Making Change Up to $5

2.2.MD.C.IA.1

Describe the relationship among standard units of time: minutes, hours, days, weeks, months and years.

2.130

Convert Time Units

2.2.MD.D.10

Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph.

2.151

Interpret Bar Graphs

2.152

Which Bar Graph Is Correct?

2.153

Create Bar Graphs Using Tables

2.154

Create Bar Graphs

2.155

Interpret Pictographs

2.156

Create Pictographs

2.2.MD.D.9

Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.

2.146

Interpret Line Plots with Up to 5 Data Points

2.147

Interpret Line Plots

2.148

Interpret Line Plots with Numbers Up to 40

2.149

Create Line Plots

2.150

Create Line Plots II

2.2.MD.D.IA.2

Use interviews, surveys, and observations to collect data that answer questions about students' interests and/or their environment.

Geometry

2.2.G.A.1

Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.

2.157

Venn Diagrams

2.158

Identify Shapes I

2.159

Identify Simple Planar and Solid Shapes

2.160

Identify Shapes II

2.161

Count Sides and Corners

2.162

Compare Sides and Corners

2.163

Identify Solid Figures

Count Edges

Count Vertices

Count Faces

Count Edges, Vertices and Faces

2.168

Compare Sides and Corners

2.169

Relate Planar and Solid Figures

2.170

Geometry of Everyday Objects

2.171

Classify Quadrilateral Shapes

2.2.G.A.2

Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.

2.172

Area with Unit Squares

2.2.G.A.3

Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.

2.173

Equal Parts

2.174

Which Shape Matches the Fraction?

2.175

Identify Fractions of Shapes

2.176

Identify Fractions Up to Fourths

2.177

Identify Fractions Up to Tenths

Operations and Algebraic Thinking

2.2.OA.A.1

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

2.1

Compare Numbers Up to 1000

2.2

Compare Numbers Up to 100

2.3

Write Addition Sentences to Describe Pictures

2.4

Choose Addition Pictures Up to 10

2.5

Addition with Pictures Up to 20

2.6

Addition with Pictures Up to 10

2.7

Addition with Sum Up to 100

2.8

Complete the Equation with Sums Up to 20

2.9

Addition Sentences Up to 100

2.10

Balance Addition Equations with Sums Up to 20

2.11

Adding Three or More Numbers

2.12

Choose Subtraction Pictures with Numbers Up to 10

2.13

Subtraction with Pictures Up to 10

2.14

Subractions Sentences to Describe Pictures

2.15

Subtraction with Sums Up to 100

2.16

Complete the Subtraction Sentence with Numbers Up to 18

2.17

Subtraction Sentences with Numbers Up to 18

2.18

Balance Subtraction Equations with Sums Up to 18

2.19

Complete the Equation with Sums Up to 100

2.20

Balance Addition Equations with Sums Up to 100

2.21

Balance Addition Equations with Operands Up to 100

2.22

Adding Three or More Numbers

2.23

Complete the Subtraction Sentence with Sums Up to 100

2.24

Subtraction Sentences with Sums Up to 100

2.25

Balance Subtraction Equations with Sums Up to 100

2.26

Balance Subtraction Equations with Operands Up to 100

2.27

Addition and Subtraction Up to 20

2.28

Addition and Subtraction - Balance Equations Up to 100

2.29

Addition and Subtraction - Balance Equations Up to 18

2.30

Input/Output Tables: Write the Rule

2.31

Addition and Subtraction Up to 100

2.33

Customary Units of Length: Using 3 One or Two Digit Numbers

2.34

Customary Units of Length

2.35

Customary Units of Length with 3 Numbers

2.36

Customary Units of Length Up to 100

2.37

Metric Units of Length: 3 Numbers

2.38

Metric Units of Length: Using 3 Numbers

2.39

Metric Units of Length

2.40

Metric Units of Length Up to 100

2.2.OA.B.2

Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

2.41

Related Addition Equations Up to 10

2.42

Choose Addition Pictures Up to 10

2.43

How to Make a Number with Single Digits Up to 10

2.44

How to Make a Number - Values Up to 100

2.45

How to Make a Number - Sums and Numbers Up to 10

2.46

Addition with Single Digit Numbers with Sums Up to 20

2.47

Addition Input/Output Tables with Sums Up to 20

2.48

Addition with a Specific Number

2.49

Related Subtraction Equations Up to 10

2.50

Subtract Two Numbers Up to 18

2.51

Subtraction Input/Output Tables

2.52

Subtracting Zero and All

2.53

Addition and Subtraction Up to 18

2.54

Add and Subtract - How to Make a Number Up to 100

2.55

Add and Subtract - How to Make a Number

2.56

Addition and Subtraction - Balance Equations Up to 100

2.2.OA.C.3

Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

Even or Odd I

Select Even or Odd

Adding Doubles

Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

2.60

Multiplication Sentences

Number and Operations in Base Ten

2.2.NBT.A.1a

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: 100 can be thought of as a bundle of ten tens - called a "hundred."

2.64

Convert Numbers to Tens and Ones Up to 1000

2.65

Convert Numbers to Tens and Ones Up to 99

2.66

Counting and Number Patterns: Hundred Chart

2.67

Convert Numbers with Tens, Hundreds, Thousands

2.2.NBT.A.1b

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).

2.62

Identify the Digit with a Particular Place Value

2.63

Value of Underlined Digit Up to 99

2.68

Value of Underlined Digit Up to 1000

2.2.NBT.A.2

Count within 1000; skip-count by 5s, 10s, and 100s.

2.69

Skip Counting by 5, 10 and 100

2.70

Counting and Number Patterns: Skip-Counting Sequences

2.71

Count by a Specific Number

2.2.NBT.A.3

Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

2.72

Names of Numbers Up to 100

2.73

Names of Numbers Up to 1000

2.74

Convert from Expanded Form

2.2.NBT.A.4

Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of comparisons.

2.75

Put Numbers in Order Up to 120

2.76

Greatest and Least

2.77

Greatest and Least

2.78

Greatest and Least Up to 1000 I

2.79

Greatest and Least Up to 1000 II

2.2.NBT.B.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

2.80

Add a One Digit Number to a Two Digit Number

2.81

Add Two Digit Numbers

2.82

Add Numbers - Sums Up to 1000

2.83

Add Two Numbers Up to 100

2.84

Addition Input/Output Tables with Numbers Up to 100

2.85

Subtract Two Numbers - 1 or 2 Digits Up to 20

2.86

Subtract One-Digit Numbers from Two-Digit Numbers

2.87

Subtract Two Numbers - Single and Double Digits

2.88

Subtract Two Numbers - Double Digits Up to 100

2.89

Ways to Make a Number with Values Up to 100

2.90

Ways to Make a Number Up to 20

2.91

Which Sign Makes the Number Sentence True?

2.2.NBT.B.6

Add up to four two-digit numbers using strategies based on place value and properties of operations.

2.92

Adding Three or More Numbers with One or Two Digits

2.2.NBT.B.7

Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

2.93

Addition Input/Output Tables with Numbers Up to 100

2.94

Addition Input/Output Tables with Sums Up to 1000

2.95

Addition Sentences Up to 1000

2.96

Complete the Equation with Sums Up to 1000

2.97

Complete the Equation with Numbers Up to 1000

2.98

Balance Addition Equations with Sums Up to 1000